Which of the following series of events is out of order?
a.
Large profits in the cattle industry led to rapid expansion, which led to a surplus of cattle.
b.
Cattle drives of the late 1800s led to the establishment of large ranches, which led to the development of the railroad.
c.
Overgrazing of cattle led to lower prices, which led to a decline in the cattle industry in Texas.
d.
When demand increased after the Civil War, a boom in the sheep industry occurred, which led to conflicts with ranchers and farmers over grazing land.

Please select the best answer from the choices provided

A
B
C
D